Technical Physics

, Volume 64, Issue 12, pp 1796–1802 | Cite as

Effect of Tungsten Carbidization on Gas Activation in Synthesis of Diamond Structures

  • A. A. Emel’yanov
  • M. Yu. PlotnikovEmail author
  • I. B. Yudin


With the aim of developing a gas-jet technique for depositing diamond structures, the flow of a hydrogen–methane mixture through hot coaxial tungsten cylindrical channels with a tungsten coil inside has been investigated. Emphasis has been placed on tungsten surface carbidization during gas-jet deposition and the influence of carbidization on the deposition rate and morphology of applied coatings. Several experiments on tungsten surface carbidization under different conditions for hydrogen–methane mixture supply have been conducted. Simulation of the mixture flow by direct simulation Monte Carlo method has been performed. Possible ways of how methane and its fragments fall on the surface of the coil has been discussed.



The authors thank Academician A.K. Rebrov for valuable discussions and comments.


This study was partially supported by the Russian Foundation for Basic Research (grant no. 18-08-00295) and budget grants (grant nos. AAAA-A17-117022850029-9 and AAAA-A17-117030110017-0).


The authors claim that they do not have any conflicts of interest.


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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • A. A. Emel’yanov
    • 1
  • M. Yu. Plotnikov
    • 1
    Email author
  • I. B. Yudin
    • 1
  1. 1.Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of SciencesNovosibirskRussia

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